Опис
The CM22PVF permanent magnet variable frequency screw air compressor represents a decisive step forward for compressed air technology across British industry. At its heart, a rare-earth permanent magnet synchronous motor works in seamless concert with an integrated variable frequency drive, enabling the compressor to match its output precisely and continuously to real demand on the production floor. Unlike conventional fixed-speed machines that run at full load regardless of what the downstream network actually requires, the CM22PVF monitors system pressure in real time and adjusts motor speed accordingly — eliminating the wasteful unloaded running cycles that inflate electricity bills on every shift. Operating across three selectable working pressures of 0.8 MPa, 1.0 MPa, and 1.25 MPa, with a free air delivery range of 1.04 to 3.50 m³/min, this unit scales comfortably from a compact engineering workshop in Leicester to a multi-shift production facility in Sunderland. With an operating noise level of just 65 dB(A) and a compact, access-friendly enclosure, it fits discreetly into the most demanding UK environments — from food-grade packaging halls to precision laser cutting centres — without placing extra burden on your maintenance team.
Performance & Reliability
Why the CM22PVF Outperforms Conventional Screw Compressors
Up to 30 % Energy Saving
The integrated PM motor and frequency drive reduce power consumption by up to 30 % versus fixed-speed equivalents. For UK businesses contending with rising electricity tariffs, this translates directly into lower operational expenditure and a payback period typically within 18 to 24 months — without any changes to your production process.
65 dB(A) — Ultra-Quiet Operation
Running at just 65 dB(A), the CM22PVF meets UK workplace noise regulations without needing additional acoustic enclosures. This makes it equally suitable for open factory floors in Birmingham, laboratory environments in Cambridge, and noise-sensitive packaging halls across the South East — anywhere that workers and product quality benefit from a quieter compressed air source.
IE4-Class Permanent Magnet Motor
The rare-earth PM rotor requires no external excitation current, eliminating rotor copper losses at every load point. Rated IE4 (Super Premium Efficiency) — the highest commercially available class — it delivers measurable efficiency gains over a conventional induction motor throughout the entire operating range, not just at nameplate load. Reduced heat generation also extends bearing and insulation life considerably.
Intelligent Pressure Stability ±0.01 MPa
The advanced controller maintains discharge pressure within a ±0.01 MPa band, delivering stable air regardless of demand spikes or trough periods on the production line. This tightly controlled pressure protects downstream pneumatic tools, robotic actuators, and spray equipment from calibration drift — a particular concern for automotive tier-1 suppliers across the Midlands and Yorkshire.
Heat Recovery Ready — Net Zero Support
The CM22PVF’s thermal architecture accommodates optional heat recovery pipework, allowing UK facilities to recapture up to 70 % of compression heat for space heating or process water preheating. This feature directly supports Net Zero commitments and may qualify your capital investment for HMRC Enhanced Capital Allowances on energy-efficient plant and machinery.
Low Maintenance, Direct-Drive Architecture
Removing the belt and coupling from the drive train cuts the number of wearing parts significantly. An extended oil change interval of 4,000 hours and generously sized service access panels keep planned maintenance costs manageable — an advantage particularly appreciated by engineering managers at UK SMEs operating on lean maintenance budgets without in-house compressor specialists.
Technology & Principle
How Permanent Magnet Variable Frequency Technology Works
Conventional screw compressors operate at a single motor speed, spinning the airend at full RPM whether demand is 100 % or 30 % of rated capacity. The CM22PVF breaks that constraint by pairing a rare-earth permanent magnet rotor — which sustains its magnetic field without continuous electrical excitation — with a variable frequency drive that adjusts motor speed in real time, typically between 20 Hz and 60 Hz. Deep inside the compression stage, two precision-machined helical screw rotors manufactured from high-grade alloy steel with a proprietary anti-wear coating mesh together, trapping successive pockets of air and progressively reducing their volume as they advance toward the discharge port. Because the rotors turn at only the speed the current demand requires, mechanical wear rates are lower and bearing loads are substantially reduced compared with fixed-speed counterparts. The integrated oil injection circuit lubricates and seals the rotor clearances while simultaneously absorbing the heat of compression — heat that is then extracted by the oversized aftercooler before the compressed air enters the downstream distribution network. The result is a machine where mechanical efficiency, thermal performance, and electrical consumption are all optimised simultaneously, rather than traded against each other as they inevitably are in older, simpler designs.
Performance Data
CM22PVF Technical Specifications
All performance values measured in accordance with ISO 1217 Annex C conditions. Data applies to ambient temperature 20 °C, relative humidity 0 %, and inlet pressure 1 bar(a).
| Model | Pressure (MPa) | Pressure (psi) | FAD (m³/min) | FAD (cfm) | Power (kW) | Power (HP) | Noise dB(A) | Weight (kg) | L × W × H (mm) |
|---|---|---|---|---|---|---|---|---|---|
| CM22PVF | 0.8 | 116 | 1.40 – 3.50 | 49 – 124 | 22 | 30 | 65 | 1,000 | 1900 × 1000 × 1635 |
| 1.0 | 145 | 1.25 – 3.13 | 44 – 111 | 850 | 1680 × 1000 × 1335 | ||||
| 1.25 | 181 | 1.04 – 2.61 | 37 – 92 | 850 | 1680 × 1000 × 1335 |
*CM-Findicates air-cooledmodel,theorange data indicates parameters ofaircooled model.
ModelwithoutFindicateswater-cooled.
Industries & Applications
Where the CM22PVF Screw Air Compressor Performs Best
The CM22PVF’s combination of wide-range variable output, ultra-low noise, and three selectable pressure ratings makes it a genuinely versatile compressed air source across a broad spectrum of British industrial sectors. In automotive manufacturing — a major employer across the West Midlands, Yorkshire, and the North East — the unit’s stable pressure control ensures that spray booths, assembly torque tools, and pneumatic actuators receive consistent air quality throughout every production shift. Pharmaceutical and food processors in the Thames Valley, East Anglia, and Cambridgeshire specify this model because the oil-injected screw principle, when paired with appropriate downstream filtration, achieves Class 1 oil content levels for product-contact processes. Precision engineering workshops across the South East depend on the 1.0 MPa and 1.25 MPa configurations to power CNC machining centres and EDM equipment where pressure stability is non-negotiable. The laser cutting sector — one of the UK’s fastest-growing fabrication technologies — particularly values the high-flow 0.8 MPa variant, which sustains the cfm throughput that high-power fibre lasers require for clean assist-gas cutting at sheet thicknesses above 6 mm. Printing, packaging, and textile operations similarly benefit from quiet running and the compact installation footprint.
Case Study
Midlands Automotive Tier-1 Supplier — Coventry
Client
A stamping and sub-assembly manufacturer in Coventry, supplying precision pressed steel components to three major UK vehicle OEMs operating continuous two-shift production cycles.
Challenge
Two ageing fixed-speed 22 kW compressors in lead-lag configuration were generating unplanned downtime of 36 hours per quarter and annual electricity costs exceeding £28,000. Pressure fluctuations during peak shifts caused calibration drift on assembly torque tools and a measurable rise in scrap rates.
Solution
Ever Power replaced the lead machine with a single CM22PVF at 1.0 MPa, retaining the second fixed-speed unit as standby. The VFD controller was set to maintain 9.5 bar within a 0.1 bar pressure band, with the intelligent algorithm monitoring load factor and temperature in real time to anticipate demand shifts before pressure drops occurred.
Results After 12 Months
What UK Customers Say About the CM22PVF
“We installed the CM22PVF in our Birmingham pressing shop 14 months ago. The noise reduction alone justified the investment — our operators no longer need ear defenders near the compressor room. Energy savings have been exactly as promised, and the machine has not missed a beat.”
“Our food packaging line runs three shifts without pause. Pressure stability from the CM22PVF has been remarkable — zero pressure-related rejects throughout the entire Christmas peak period. Ever Power’s technical support before and after delivery was outstanding.”
“We specified the 1.25 MPa variant to run our fibre laser and waterjet cutting centre in Sheffield. The wide FAD range lets one unit cover both machines simultaneously without pressure compromise. This is genuinely intelligent compressed air.”
Manufacturing & Custom Build
Ever Power Factory & Bespoke Customisation Capability
The CM22PVF is manufactured in Ever Power’s purpose-built facility, which operates a vertically integrated production model — from grinding the screw rotor profiles on five-axis CNC centres to final assembly and 100 % factory acceptance testing under simulated full-load conditions before dispatch. This degree of in-house control gives the production team the capability to accept non-standard specifications that catalogue suppliers typically decline. Need a specific enclosure colour to satisfy your site’s visual management system? Require an additional condensate management assembly or a dedicated 3/2 bypass valve for connection to an existing ring main? Our engineers will review your installation drawings and propose a tailored build specification. Compressor packages are available as bare units, skid-mounted with integrated refrigerant dryer and multi-stage filtration, or supplied in a full acoustic canopy with remote monitoring output — all CE-marked and ready for UK 415V/50Hz three-phase supplies as standard. For larger or more complex projects — multi-unit compressed air systems, custom control panels, or installations that combine variable frequency compressors with existing fixed-speed machines — our project engineering team can supply P&ID diagrams, full equipment schedules, and commissioning support through our UK distribution partner network. Whatever your compressed air requirement, Ever Power will build it to specification, test it thoroughly, and support it throughout its working life.
FAQs
Часті запитання
What is the typical price or cost of a 22kW permanent magnet variable frequency screw air compressor for a UK manufacturing site, and where can I get a quote?
Capital pricing for the CM22PVF varies with your selected working pressure, any bespoke configuration requirements, and ancillary equipment such as integrated dryers or filtration packages. What most UK buyers find is that annual energy savings of £7,000–£12,000 versus a fixed-speed equivalent make the investment case straightforward. For a detailed quotation specific to your site, email [email protected] — our team responds within 24 hours.
How much energy can a PM variable frequency screw air compressor actually save compared with a fixed-speed machine running in a UK factory on two or three shifts?
In real-world UK factory conditions — where compressed air demand typically fluctuates between 40 % and 80 % of peak capacity across a shift — a PM VFD compressor like the CM22PVF commonly delivers energy reductions of 25 to 35 % versus a fixed-speed equivalent. The exact saving depends on your load profile: a site with highly variable demand sees the greatest benefit. Many UK operators achieve full payback within 18 to 24 months from electricity savings alone, before accounting for any reduction in maintenance expenditure.
Which UK industries and regions most commonly specify a 22kW variable frequency screw compressor, and who are the most reliable suppliers in Britain?
The 22kW VFD screw compressor class is most frequently specified by automotive tier-1 and tier-2 suppliers across the Midlands and Yorkshire, food processing operations in East Anglia and the North West, pharmaceutical manufacturers in the Oxford–Cambridge corridor, and metal fabrication and laser cutting workshops throughout the South East and South Yorkshire. Ever Power supplies all these sectors from both stock and custom-build options, with CE-marked units configured for UK electrical requirements and full commissioning support available nationwide.
What is the difference between a permanent magnet motor and a standard induction motor in a screw compressor, and does that difference actually matter for my production facility?
A permanent magnet motor uses rare-earth magnets embedded in the rotor rather than induced currents, which means there are no rotor copper losses at any operating speed. This gives PM motors an efficiency advantage of 2 to 5 percentage points at part load — precisely the operating region where most production compressors spend the majority of their running hours. For a UK facility with significant electricity costs, that efficiency difference represents real, measurable annual savings. The PM motor in the CM22PVF is rated IE4, the highest commercially available efficiency class, and its reduced heat generation also extends bearing and insulation life compared with a conventional induction motor.
Can I get a custom-built 22kW screw air compressor from Ever Power that meets UK CE marking requirements and my specific voltage, pressure, and enclosure specifications?
Yes. Ever Power’s manufacturing facility routinely produces CE-marked compressor packages configured for UK 415V/50Hz three-phase supply. The CM22PVF is available at 0.8, 1.0, or 1.25 MPa standard pressure ratings, or at intermediate pressures on request. Custom options include integrated refrigerant dryers, coalescing filtration packages, acoustic canopies with remote monitoring output, specific RAL enclosure colours, and bespoke control panel configurations. Our engineering team reviews your installation requirements and provides a detailed build specification with lead time and pricing — contact [email protected].
When should I choose a variable frequency screw air compressor over a fixed-speed model for a new compressed air installation in a UK manufacturing plant?
A variable frequency compressor makes the strongest business case when your air demand varies by more than 30 % between peak and base load, when you operate multi-shift schedules where off-load losses accumulate over many hours, or when your process is sensitive to pressure fluctuations. If your plant runs a consistent near-full-load demand 24/7, a high-quality fixed-speed machine may be appropriate instead. Our application engineers can review your existing compressor run logs and provide objective payback modelling at no cost — simply get in touch to arrange a no-obligation assessment.
Ready to Reduce Your Compressed Air Energy Bill?
Speak to an Ever Power application engineer today. UK B2B enquiries welcome — response within 24 hours.
